Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1987-04-15
1989-06-20
Goodrow, John L.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430904, G03G 908
Patent
active
048408638
ABSTRACT:
A positively chargeable toner for use in dry electrophotography, said toner comprising (A) a resinous binder composed of at least one resin selected from copolymers of styrene and/or alpha-methylstyrene with alkyl (meth)acrylates, polyester resins and epoxy resins, (B) 1 to 100 parts by weight, per 100 parts by weight of the resinous binder, of a copolymer containing a quaternary ammonium salt group, said copolymer having a weight average molecular weight of from 2,000 to 10,000 and composed of 65 to 97% by weight of recurring units represented by the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, and 35 to 3% by weight of recurring units represented by the formula ##STR2## wherein R.sub.2 represents a hydrogen atom or a methyl group, R.sub.3 represents an alkylene group, and each of R.sub.4, R.sub.5 and R.sub.6 represents an alkyl group, and (C) a coloring agent.
REFERENCES:
patent: 4291112 (1981-09-01), Lu
patent: 4299898 (1981-11-01), Williams et al.
patent: 4397935 (1983-08-01), Ciccarelli
patent: 4756991 (1988-07-01), Grubb
Nagase Hiroshi
Otsu Akira
Fujikura Kasei Co., Ltd.
Goodrow John L.
LandOfFree
Positively chargeable toner for use in dry electrophotography does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Positively chargeable toner for use in dry electrophotography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positively chargeable toner for use in dry electrophotography will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-524883